<?php
/**
 * Copyright 2008 francissem (http://www.webmoss.net)(francissem@gmail.com)
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 		http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @author francissem
 * @copyright 2008 francissem (http://www.webmoss.net)(francissem@gmail.com)
 * @license http://www.apache.org/licenses/LICENSE-2.0
 */
class Core_Repository_Data_Info{
	public $data_class_name;
	public $has_copies;
	public $cursor;
	public $last_by_tags=array();
	
	function __construct(array $arr){
		foreach($arr as $k=>$v) $this->$k=$v;
	}
	
	function applyLastTag($tag="_notag_",$hash){
		$this->last_by_tags[$tag]=$hash;
	}
	
	function getLastHashByTag($tag){
		return $this->last_by_tags[$tag];
	}
	
	static function wrap(Core_Repository_Data_Info $info){
		$a = array(
			"dc"=>$info->data_class_name,
			"cp"=>(int)$info->has_copies,
			"t"=>$info->last_by_tags,
			"c"=>$info->cursor
		);
		return array_filter($a);
	}
	static function unwrap(array $arr){
		return new Core_Repository_Data_Info(array(
			"data_class_name"=>$arr["dc"],
		 	"has_copies"=>$arr["cp"],
		 	"last_by_tags"=>$arr["t"],
			"cursor"=>$arr["c"]
	 	));
	}
}
?>